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switch to metric, the up arrow to switch to feet. Displays show in feet when
the unit is first turned on. The menu will clear automatically after a few
seconds or you can press the PWR/CLEAR key to clear the screen.
DISPLAY CONTRAST
The unit's display contrast is adjustable to suit different lighting conditions.
This will help you see the screen from different angles, or at various times
of the day.
To adjust the contrast, press a menu key until
the DARK/LIGHT menu appears. To decrease
it, press the down arrow key. Press the up
arrow key to increase the contrast. The bar
graph in the Dark/Light menu box shows a
graph of the contrast. The screen will also
show the effects of the change. If you reach
the maximum or minimum level, a tone sounds
alerting you to the limits. The menu will clear
automatically after a few seconds or press
the PWR/CLEAR key to clear the screen.
ASP (Advanced Signal Processing)
ASP is a program embedded in the X-28's computer that is specifically
designed to eliminate noise. It continually monitors the signals from the
receiver, determines which echoes are noise and rejects them. This allows
true target echoes to display on the screen
with a minimum of clutter. This feature is
especially useful since it typically lets you
operate the boat at all speeds without adjust-
ing the sensitivity or other controls. When the
X-28 is first turned on, ASP is enabled. To turn
ASP off, press a menu key repeatedly until
the ASP menu appears. Now press the up
arrow to turn it on or the down arrow to turn it
off. The menu will clear automatically after a
few seconds or you can press the PWR/
CLEAR key to clear the screen.
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